Automatic system to separate trash

At the present time, the ecological balance has been altered by the increase volume of sweepings that is created day to day, thus it is of great importance of finding efficient solutions that allow us to introduce to the new generations in systems in favor of the ecology as in recycling. It is for this that a capable mechatronic system was created to detect the physical characteristics of the residues and to separate it depending of the material of which this is formed, with the purpose of transporting this separated sweepings to the diverse methods of recycling. This system give us the possibility to increasing in great percentage the volume of recycled sweepings saving energy to create new raw material, smaller contamination and a clear diminution of possible diseases in the places near the dust-bins, mainly in cities where it is not counted on the facilities adapted for the treatment of these residues. The application of this type of systems can be from home, public areas or industrial volumes, everything under the same functional principle. In order to obtain the detection of the material we used the most common electricity principle, the capacitance. As we know all material has a dielectric constant, which is the property that makes difficult the conduction of tension, considering the emptiness like a value of equal capacitance to zero. Using this physical principle, we will use a capacitance sensor type, which grants a digital sign to us when detecting an object with a greater dielectric value to the one of the air. On the other hand the detection of the object side affected by the parallel distance to the sensor and the dielectric value of the object. This allows us to use this principle with our system, since if we know the distance to which the sensor detects our object we will be able to know the value dielectric of the material. Finally we know that the area of the object of parallel form to the sensor also influences in the detection range of the object, is by which was necessary to place an area sensor to detect the size of the object, with which we will obtain two variables; on one hand we have the object area and by the other side we have the distance to which the material was detected. These two variables will be placed in a simple graph where x-axis will be formed by the area of the object whereas the axis and will be formed by the detection range. In clear and constant form each material forms a rank of the value of the slope with which we can identify the material perfectly. The efficiency obtained by the system is around 90% with consumption no greater to 300 watts by classification, and 10 watts in rest and if we considered that the prototype had a cost of around 300 dollars and the manufacture is very simple, therefore the system becomes a very interesting option to solve the problem.

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Step 1 Automatic system to separate Trash

http://www.createthefuturecontest.com/pages/view/entriesdetail.html?entryID=1858

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